Commit | Line | Data |
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aa137e4d | 1 | /* tc-tilepro.c -- Assemble for a TILEPro chip. |
b3adc24a | 2 | Copyright (C) 2011-2020 Free Software Foundation, Inc. |
aa137e4d NC |
3 | |
4 | This file is part of GAS, the GNU Assembler. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 3 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | This program is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with this program; if not, write to the Free Software | |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, | |
19 | MA 02110-1301, USA. */ | |
20 | ||
21 | #include "as.h" | |
aa137e4d NC |
22 | #include "subsegs.h" |
23 | ||
24 | #include "elf/tilepro.h" | |
25 | #include "opcode/tilepro.h" | |
26 | ||
27 | #include "dwarf2dbg.h" | |
28 | #include "dw2gencfi.h" | |
29 | ||
30 | #include "safe-ctype.h" | |
31 | ||
32 | ||
33 | /* Special registers. */ | |
34 | #define TREG_IDN0 57 | |
35 | #define TREG_IDN1 58 | |
36 | #define TREG_UDN0 59 | |
37 | #define TREG_UDN1 60 | |
38 | #define TREG_UDN2 61 | |
39 | #define TREG_UDN3 62 | |
40 | #define TREG_ZERO 63 | |
41 | ||
42 | ||
43 | /* Generic assembler global variables which must be defined by all | |
44 | targets. */ | |
45 | ||
46 | /* Characters which always start a comment. */ | |
47 | const char comment_chars[] = "#"; | |
48 | ||
49 | /* Characters which start a comment at the beginning of a line. */ | |
50 | const char line_comment_chars[] = "#"; | |
51 | ||
52 | /* Characters which may be used to separate multiple commands on a | |
53 | single line. */ | |
54 | const char line_separator_chars[] = ";"; | |
55 | ||
56 | /* Characters which are used to indicate an exponent in a floating | |
57 | point number. */ | |
58 | const char EXP_CHARS[] = "eE"; | |
59 | ||
60 | /* Characters which mean that a number is a floating point constant, | |
61 | as in 0d1.0. */ | |
62 | const char FLT_CHARS[] = "rRsSfFdDxXpP"; | |
63 | ||
64 | const char *md_shortopts = "VQ:"; | |
65 | ||
66 | struct option md_longopts[] = | |
67 | { | |
68 | {NULL, no_argument, NULL, 0} | |
69 | }; | |
70 | ||
71 | size_t md_longopts_size = sizeof (md_longopts); | |
72 | ||
73 | int | |
17b9d67d | 74 | md_parse_option (int c, const char *arg ATTRIBUTE_UNUSED) |
aa137e4d NC |
75 | { |
76 | switch (c) | |
77 | { | |
78 | /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section | |
79 | should be emitted or not. FIXME: Not implemented. */ | |
80 | case 'Q': | |
81 | break; | |
82 | ||
83 | /* -V: SVR4 argument to print version ID. */ | |
84 | case 'V': | |
85 | print_version_id (); | |
86 | break; | |
87 | ||
88 | default: | |
89 | return 0; | |
90 | } | |
91 | ||
92 | return 1; | |
93 | } | |
94 | ||
95 | void | |
96 | md_show_usage (FILE *stream) | |
97 | { | |
98 | fprintf (stream, _("\ | |
99 | -Q ignored\n\ | |
100 | -V print assembler version number\n")); | |
101 | } | |
102 | ||
103 | /* Extra expression types. */ | |
104 | ||
6f7be959 WL |
105 | #define O_lo16 O_md1 |
106 | #define O_hi16 O_md2 | |
107 | #define O_ha16 O_md3 | |
108 | #define O_got O_md4 | |
aa137e4d NC |
109 | #define O_got_lo16 O_md5 |
110 | #define O_got_hi16 O_md6 | |
111 | #define O_got_ha16 O_md7 | |
6f7be959 | 112 | #define O_plt O_md8 |
aa137e4d NC |
113 | #define O_tls_gd O_md9 |
114 | #define O_tls_gd_lo16 O_md10 | |
115 | #define O_tls_gd_hi16 O_md11 | |
116 | #define O_tls_gd_ha16 O_md12 | |
117 | #define O_tls_ie O_md13 | |
118 | #define O_tls_ie_lo16 O_md14 | |
119 | #define O_tls_ie_hi16 O_md15 | |
120 | #define O_tls_ie_ha16 O_md16 | |
6f7be959 WL |
121 | #define O_tls_le O_md17 |
122 | #define O_tls_le_lo16 O_md18 | |
123 | #define O_tls_le_hi16 O_md19 | |
124 | #define O_tls_le_ha16 O_md20 | |
125 | #define O_tls_gd_call O_md21 | |
126 | #define O_tls_gd_add O_md22 | |
127 | #define O_tls_ie_load O_md23 | |
aa137e4d | 128 | |
629310ab | 129 | static htab_t special_operator_hash; |
aa137e4d NC |
130 | |
131 | /* Hash tables for instruction mnemonic lookup. */ | |
629310ab | 132 | static htab_t op_hash; |
aa137e4d NC |
133 | |
134 | /* Hash table for spr lookup. */ | |
629310ab | 135 | static htab_t spr_hash; |
aa137e4d NC |
136 | |
137 | /* True temporarily while parsing an SPR expression. This changes the | |
138 | * namespace to include SPR names. */ | |
139 | static int parsing_spr; | |
140 | ||
141 | /* Are we currently inside `{ ... }'? */ | |
142 | static int inside_bundle; | |
143 | ||
144 | struct tilepro_instruction | |
145 | { | |
146 | const struct tilepro_opcode *opcode; | |
147 | tilepro_pipeline pipe; | |
148 | expressionS operand_values[TILEPRO_MAX_OPERANDS]; | |
149 | }; | |
150 | ||
151 | /* This keeps track of the current bundle being built up. */ | |
152 | static struct tilepro_instruction | |
153 | current_bundle[TILEPRO_MAX_INSTRUCTIONS_PER_BUNDLE]; | |
154 | ||
155 | /* Index in current_bundle for the next instruction to parse. */ | |
156 | static int current_bundle_index; | |
157 | ||
158 | /* Allow 'r63' in addition to 'zero', etc. Normally we disallow this as | |
159 | 'zero' is not a real register, so using it accidentally would be a | |
160 | nasty bug. For other registers, such as 'sp', code using multiple names | |
161 | for the same physical register is excessively confusing. | |
162 | ||
163 | The '.require_canonical_reg_names' pseudo-op turns this error on, | |
164 | and the '.no_require_canonical_reg_names' pseudo-op turns this off. | |
165 | By default the error is on. */ | |
166 | static int require_canonical_reg_names; | |
167 | ||
168 | /* Allow bundles that do undefined or suspicious things like write | |
169 | two different values to the same register at the same time. | |
170 | ||
171 | The '.no_allow_suspicious_bundles' pseudo-op turns this error on, | |
172 | and the '.allow_suspicious_bundles' pseudo-op turns this off. */ | |
173 | static int allow_suspicious_bundles; | |
174 | ||
175 | ||
176 | /* A hash table of main processor registers, mapping each register name | |
177 | to its index. | |
178 | ||
179 | Furthermore, if the register number is greater than the number | |
180 | of registers for that processor, the user used an illegal alias | |
181 | for that register (e.g. r63 instead of zero), so we should generate | |
182 | a warning. The attempted register number can be found by clearing | |
183 | NONCANONICAL_REG_NAME_FLAG. */ | |
629310ab | 184 | static htab_t main_reg_hash; |
aa137e4d NC |
185 | |
186 | ||
187 | /* We cannot unambiguously store a 0 in a hash table and look it up, | |
188 | so we OR in this flag to every canonical register. */ | |
189 | #define CANONICAL_REG_NAME_FLAG 0x1000 | |
190 | ||
191 | /* By default we disallow register aliases like r63, but we record | |
192 | them in the hash table in case the .no_require_canonical_reg_names | |
193 | directive is used. Noncanonical names have this value added to them. */ | |
194 | #define NONCANONICAL_REG_NAME_FLAG 0x2000 | |
195 | ||
196 | /* Discards flags for register hash table entries and returns the | |
197 | reg number. */ | |
198 | #define EXTRACT_REGNO(p) ((p) & 63) | |
199 | ||
200 | /* This function is called once, at assembler startup time. It should | |
201 | set up all the tables, etc., that the MD part of the assembler will | |
202 | need. */ | |
203 | void | |
204 | md_begin (void) | |
205 | { | |
206 | const struct tilepro_opcode *op; | |
207 | int i; | |
208 | ||
209 | /* Guarantee text section is aligned. */ | |
fd361982 | 210 | bfd_set_section_alignment (text_section, |
aa137e4d NC |
211 | TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES); |
212 | ||
213 | require_canonical_reg_names = 1; | |
214 | allow_suspicious_bundles = 0; | |
215 | current_bundle_index = 0; | |
216 | inside_bundle = 0; | |
217 | ||
218 | /* Initialize special operator hash table. */ | |
629310ab | 219 | special_operator_hash = str_htab_create (); |
aa137e4d | 220 | #define INSERT_SPECIAL_OP(name) \ |
fe0e921f | 221 | str_hash_insert (special_operator_hash, #name, (void *) O_##name, 0) |
aa137e4d NC |
222 | |
223 | INSERT_SPECIAL_OP(lo16); | |
224 | INSERT_SPECIAL_OP(hi16); | |
225 | INSERT_SPECIAL_OP(ha16); | |
226 | INSERT_SPECIAL_OP(got); | |
227 | INSERT_SPECIAL_OP(got_lo16); | |
228 | INSERT_SPECIAL_OP(got_hi16); | |
229 | INSERT_SPECIAL_OP(got_ha16); | |
230 | INSERT_SPECIAL_OP(plt); | |
231 | INSERT_SPECIAL_OP(tls_gd); | |
232 | INSERT_SPECIAL_OP(tls_gd_lo16); | |
233 | INSERT_SPECIAL_OP(tls_gd_hi16); | |
234 | INSERT_SPECIAL_OP(tls_gd_ha16); | |
235 | INSERT_SPECIAL_OP(tls_ie); | |
236 | INSERT_SPECIAL_OP(tls_ie_lo16); | |
237 | INSERT_SPECIAL_OP(tls_ie_hi16); | |
238 | INSERT_SPECIAL_OP(tls_ie_ha16); | |
6f7be959 WL |
239 | INSERT_SPECIAL_OP(tls_le); |
240 | INSERT_SPECIAL_OP(tls_le_lo16); | |
241 | INSERT_SPECIAL_OP(tls_le_hi16); | |
242 | INSERT_SPECIAL_OP(tls_le_ha16); | |
243 | INSERT_SPECIAL_OP(tls_gd_call); | |
244 | INSERT_SPECIAL_OP(tls_gd_add); | |
245 | INSERT_SPECIAL_OP(tls_ie_load); | |
aa137e4d NC |
246 | #undef INSERT_SPECIAL_OP |
247 | ||
248 | /* Initialize op_hash hash table. */ | |
629310ab | 249 | op_hash = str_htab_create (); |
aa137e4d | 250 | for (op = &tilepro_opcodes[0]; op->name != NULL; op++) |
fe0e921f AM |
251 | if (str_hash_insert (op_hash, op->name, op, 0) != NULL) |
252 | as_fatal (_("duplicate %s"), op->name); | |
aa137e4d NC |
253 | |
254 | /* Initialize the spr hash table. */ | |
255 | parsing_spr = 0; | |
629310ab | 256 | spr_hash = str_htab_create (); |
aa137e4d | 257 | for (i = 0; i < tilepro_num_sprs; i++) |
fe0e921f | 258 | str_hash_insert (spr_hash, tilepro_sprs[i].name, &tilepro_sprs[i], 0); |
aa137e4d NC |
259 | |
260 | /* Set up the main_reg_hash table. We use this instead of | |
261 | * creating a symbol in the register section to avoid ambiguities | |
262 | * with labels that have the same names as registers. */ | |
629310ab | 263 | main_reg_hash = str_htab_create (); |
aa137e4d NC |
264 | for (i = 0; i < TILEPRO_NUM_REGISTERS; i++) |
265 | { | |
266 | char buf[64]; | |
267 | ||
629310ab | 268 | str_hash_insert (main_reg_hash, tilepro_register_names[i], |
fe0e921f | 269 | (void *) (long) (i | CANONICAL_REG_NAME_FLAG), 0); |
aa137e4d NC |
270 | |
271 | /* See if we should insert a noncanonical alias, like r63. */ | |
272 | sprintf (buf, "r%d", i); | |
273 | if (strcmp (buf, tilepro_register_names[i]) != 0) | |
629310ab | 274 | str_hash_insert (main_reg_hash, xstrdup (buf), |
fe0e921f | 275 | (void *) (long) (i | NONCANONICAL_REG_NAME_FLAG), 0); |
aa137e4d NC |
276 | } |
277 | ||
278 | /* Insert obsolete backwards-compatibility register names. */ | |
629310ab | 279 | str_hash_insert (main_reg_hash, "io0", |
fe0e921f | 280 | (void *) (long) (TREG_IDN0 | CANONICAL_REG_NAME_FLAG), 0); |
629310ab | 281 | str_hash_insert (main_reg_hash, "io1", |
fe0e921f | 282 | (void *) (long) (TREG_IDN1 | CANONICAL_REG_NAME_FLAG), 0); |
629310ab | 283 | str_hash_insert (main_reg_hash, "us0", |
fe0e921f | 284 | (void *) (long) (TREG_UDN0 | CANONICAL_REG_NAME_FLAG), 0); |
629310ab | 285 | str_hash_insert (main_reg_hash, "us1", |
fe0e921f | 286 | (void *) (long) (TREG_UDN1 | CANONICAL_REG_NAME_FLAG), 0); |
629310ab | 287 | str_hash_insert (main_reg_hash, "us2", |
fe0e921f | 288 | (void *) (long) (TREG_UDN2 | CANONICAL_REG_NAME_FLAG), 0); |
629310ab | 289 | str_hash_insert (main_reg_hash, "us3", |
fe0e921f | 290 | (void *) (long) (TREG_UDN3 | CANONICAL_REG_NAME_FLAG), 0); |
aa137e4d NC |
291 | |
292 | } | |
293 | ||
294 | ||
295 | #define BUNDLE_TEMPLATE_MASK(p0, p1, p2) \ | |
296 | ((p0) | ((p1) << 8) | ((p2) << 16)) | |
297 | #define BUNDLE_TEMPLATE(p0, p1, p2) \ | |
298 | { { (p0), (p1), (p2) }, \ | |
299 | BUNDLE_TEMPLATE_MASK(1 << (p0), 1 << (p1), (1 << (p2))) \ | |
300 | } | |
301 | ||
302 | #define NO_PIPELINE TILEPRO_NUM_PIPELINE_ENCODINGS | |
303 | ||
304 | struct bundle_template | |
305 | { | |
306 | tilepro_pipeline pipe[TILEPRO_MAX_INSTRUCTIONS_PER_BUNDLE]; | |
307 | unsigned int pipe_mask; | |
308 | }; | |
309 | ||
310 | static const struct bundle_template bundle_templates[] = | |
311 | { | |
312 | /* In Y format we must always have something in Y2, since it has | |
313 | * no fnop, so this conveys that Y2 must always be used. */ | |
314 | BUNDLE_TEMPLATE(TILEPRO_PIPELINE_Y0, TILEPRO_PIPELINE_Y2, NO_PIPELINE), | |
315 | BUNDLE_TEMPLATE(TILEPRO_PIPELINE_Y1, TILEPRO_PIPELINE_Y2, NO_PIPELINE), | |
316 | BUNDLE_TEMPLATE(TILEPRO_PIPELINE_Y2, TILEPRO_PIPELINE_Y0, NO_PIPELINE), | |
317 | BUNDLE_TEMPLATE(TILEPRO_PIPELINE_Y2, TILEPRO_PIPELINE_Y1, NO_PIPELINE), | |
318 | ||
319 | /* Y format has three instructions. */ | |
320 | BUNDLE_TEMPLATE(TILEPRO_PIPELINE_Y0, TILEPRO_PIPELINE_Y1, TILEPRO_PIPELINE_Y2), | |
321 | BUNDLE_TEMPLATE(TILEPRO_PIPELINE_Y0, TILEPRO_PIPELINE_Y2, TILEPRO_PIPELINE_Y1), | |
322 | BUNDLE_TEMPLATE(TILEPRO_PIPELINE_Y1, TILEPRO_PIPELINE_Y0, TILEPRO_PIPELINE_Y2), | |
323 | BUNDLE_TEMPLATE(TILEPRO_PIPELINE_Y1, TILEPRO_PIPELINE_Y2, TILEPRO_PIPELINE_Y0), | |
324 | BUNDLE_TEMPLATE(TILEPRO_PIPELINE_Y2, TILEPRO_PIPELINE_Y0, TILEPRO_PIPELINE_Y1), | |
325 | BUNDLE_TEMPLATE(TILEPRO_PIPELINE_Y2, TILEPRO_PIPELINE_Y1, TILEPRO_PIPELINE_Y0), | |
326 | ||
327 | /* X format has only two instructions. */ | |
328 | BUNDLE_TEMPLATE(TILEPRO_PIPELINE_X0, TILEPRO_PIPELINE_X1, NO_PIPELINE), | |
329 | BUNDLE_TEMPLATE(TILEPRO_PIPELINE_X1, TILEPRO_PIPELINE_X0, NO_PIPELINE) | |
330 | }; | |
331 | ||
332 | ||
333 | static void | |
334 | prepend_nop_to_bundle (tilepro_mnemonic mnemonic) | |
335 | { | |
336 | memmove (¤t_bundle[1], ¤t_bundle[0], | |
337 | current_bundle_index * sizeof current_bundle[0]); | |
338 | current_bundle[0].opcode = &tilepro_opcodes[mnemonic]; | |
339 | ++current_bundle_index; | |
340 | } | |
341 | ||
342 | ||
343 | static tilepro_bundle_bits | |
344 | insert_operand (tilepro_bundle_bits bits, | |
345 | const struct tilepro_operand *operand, | |
346 | int operand_value, | |
3b4dbbbf | 347 | const char *file, |
aa137e4d NC |
348 | unsigned lineno) |
349 | { | |
350 | /* Range-check the immediate. */ | |
351 | int num_bits = operand->num_bits; | |
352 | ||
353 | operand_value >>= operand->rightshift; | |
354 | ||
355 | if (bfd_check_overflow (operand->is_signed | |
356 | ? complain_overflow_signed | |
357 | : complain_overflow_unsigned, | |
358 | num_bits, | |
359 | 0, | |
360 | bfd_arch_bits_per_address (stdoutput), | |
361 | operand_value) | |
362 | != bfd_reloc_ok) | |
363 | { | |
364 | offsetT min, max; | |
365 | if (operand->is_signed) | |
366 | { | |
367 | min = -(1 << (num_bits - 1)); | |
368 | max = (1 << (num_bits - 1)) - 1; | |
369 | } | |
370 | else | |
371 | { | |
372 | min = 0; | |
373 | max = (1 << num_bits) - 1; | |
374 | } | |
375 | as_bad_value_out_of_range (_("operand"), operand_value, min, max, | |
376 | file, lineno); | |
377 | } | |
378 | ||
379 | /* Write out the bits for the immediate. */ | |
380 | return bits | operand->insert (operand_value); | |
381 | } | |
382 | ||
383 | ||
384 | static int | |
385 | apply_special_operator (operatorT op, int num) | |
386 | { | |
387 | switch (op) | |
388 | { | |
389 | case O_lo16: | |
aa137e4d NC |
390 | return (signed short)num; |
391 | ||
392 | case O_hi16: | |
aa137e4d NC |
393 | return (signed short)(num >> 16); |
394 | ||
395 | case O_ha16: | |
aa137e4d NC |
396 | return (signed short)((num + 0x8000) >> 16); |
397 | ||
398 | default: | |
399 | abort (); | |
400 | } | |
401 | } | |
402 | ||
403 | ||
404 | static tilepro_bundle_bits | |
405 | emit_tilepro_instruction (tilepro_bundle_bits bits, | |
406 | int num_operands, | |
407 | const unsigned char *operands, | |
408 | expressionS *operand_values, | |
409 | char *bundle_start) | |
410 | { | |
411 | int i; | |
412 | ||
413 | for (i = 0; i < num_operands; i++) | |
414 | { | |
415 | const struct tilepro_operand *operand = | |
416 | &tilepro_operands[operands[i]]; | |
417 | expressionS *operand_exp = &operand_values[i]; | |
418 | int is_pc_relative = operand->is_pc_relative; | |
419 | ||
420 | if (operand_exp->X_op == O_register | |
421 | || (operand_exp->X_op == O_constant && !is_pc_relative)) | |
422 | { | |
423 | /* We know what the bits are right now, so insert them. */ | |
424 | bits = insert_operand (bits, operand, operand_exp->X_add_number, | |
425 | NULL, 0); | |
426 | } | |
427 | else | |
428 | { | |
429 | bfd_reloc_code_real_type reloc = operand->default_reloc; | |
430 | expressionS subexp; | |
431 | int die = 0, use_subexp = 0, require_symbol = 0; | |
432 | fixS *fixP; | |
433 | ||
434 | /* Take an expression like hi16(x) and turn it into x with | |
435 | a different reloc type. */ | |
436 | switch (operand_exp->X_op) | |
437 | { | |
438 | #define HANDLE_OP16(suffix) \ | |
439 | switch (reloc) \ | |
440 | { \ | |
441 | case BFD_RELOC_TILEPRO_IMM16_X0: \ | |
442 | reloc = BFD_RELOC_TILEPRO_IMM16_X0_##suffix; \ | |
443 | break; \ | |
444 | case BFD_RELOC_TILEPRO_IMM16_X1: \ | |
445 | reloc = BFD_RELOC_TILEPRO_IMM16_X1_##suffix; \ | |
446 | break; \ | |
447 | default: \ | |
448 | die = 1; \ | |
449 | break; \ | |
450 | } \ | |
451 | use_subexp = 1 | |
452 | ||
453 | case O_lo16: | |
454 | HANDLE_OP16 (LO); | |
455 | break; | |
456 | ||
457 | case O_hi16: | |
458 | HANDLE_OP16 (HI); | |
459 | break; | |
460 | ||
461 | case O_ha16: | |
462 | HANDLE_OP16 (HA); | |
463 | break; | |
464 | ||
465 | case O_got: | |
466 | HANDLE_OP16 (GOT); | |
467 | require_symbol = 1; | |
468 | break; | |
469 | ||
470 | case O_got_lo16: | |
471 | HANDLE_OP16 (GOT_LO); | |
472 | require_symbol = 1; | |
473 | break; | |
474 | ||
475 | case O_got_hi16: | |
476 | HANDLE_OP16 (GOT_HI); | |
477 | require_symbol = 1; | |
478 | break; | |
479 | ||
480 | case O_got_ha16: | |
481 | HANDLE_OP16 (GOT_HA); | |
482 | require_symbol = 1; | |
483 | break; | |
484 | ||
485 | case O_tls_gd: | |
486 | HANDLE_OP16 (TLS_GD); | |
487 | require_symbol = 1; | |
488 | break; | |
489 | ||
490 | case O_tls_gd_lo16: | |
491 | HANDLE_OP16 (TLS_GD_LO); | |
492 | require_symbol = 1; | |
493 | break; | |
494 | ||
495 | case O_tls_gd_hi16: | |
496 | HANDLE_OP16 (TLS_GD_HI); | |
497 | require_symbol = 1; | |
498 | break; | |
499 | ||
500 | case O_tls_gd_ha16: | |
501 | HANDLE_OP16 (TLS_GD_HA); | |
502 | require_symbol = 1; | |
503 | break; | |
504 | ||
505 | case O_tls_ie: | |
506 | HANDLE_OP16 (TLS_IE); | |
507 | require_symbol = 1; | |
508 | break; | |
509 | ||
510 | case O_tls_ie_lo16: | |
511 | HANDLE_OP16 (TLS_IE_LO); | |
512 | require_symbol = 1; | |
513 | break; | |
514 | ||
515 | case O_tls_ie_hi16: | |
516 | HANDLE_OP16 (TLS_IE_HI); | |
517 | require_symbol = 1; | |
518 | break; | |
519 | ||
520 | case O_tls_ie_ha16: | |
521 | HANDLE_OP16 (TLS_IE_HA); | |
522 | require_symbol = 1; | |
523 | break; | |
524 | ||
6f7be959 WL |
525 | case O_tls_le: |
526 | HANDLE_OP16 (TLS_LE); | |
527 | require_symbol = 1; | |
528 | break; | |
529 | ||
530 | case O_tls_le_lo16: | |
531 | HANDLE_OP16 (TLS_LE_LO); | |
532 | require_symbol = 1; | |
533 | break; | |
534 | ||
535 | case O_tls_le_hi16: | |
536 | HANDLE_OP16 (TLS_LE_HI); | |
537 | require_symbol = 1; | |
538 | break; | |
539 | ||
540 | case O_tls_le_ha16: | |
541 | HANDLE_OP16 (TLS_LE_HA); | |
542 | require_symbol = 1; | |
543 | break; | |
544 | ||
aa137e4d NC |
545 | #undef HANDLE_OP16 |
546 | ||
547 | case O_plt: | |
548 | switch (reloc) | |
549 | { | |
550 | case BFD_RELOC_TILEPRO_JOFFLONG_X1: | |
551 | reloc = BFD_RELOC_TILEPRO_JOFFLONG_X1_PLT; | |
552 | break; | |
553 | default: | |
554 | die = 1; | |
555 | break; | |
556 | } | |
557 | use_subexp = 1; | |
558 | require_symbol = 1; | |
559 | break; | |
560 | ||
6f7be959 WL |
561 | case O_tls_gd_call: |
562 | switch (reloc) | |
563 | { | |
564 | case BFD_RELOC_TILEPRO_JOFFLONG_X1: | |
565 | reloc = BFD_RELOC_TILEPRO_TLS_GD_CALL; | |
566 | break; | |
567 | default: | |
568 | die = 1; | |
569 | break; | |
570 | } | |
571 | use_subexp = 1; | |
572 | require_symbol = 1; | |
573 | break; | |
574 | ||
575 | case O_tls_gd_add: | |
576 | switch (reloc) | |
577 | { | |
578 | case BFD_RELOC_TILEPRO_IMM8_X0: | |
579 | reloc = BFD_RELOC_TILEPRO_IMM8_X0_TLS_GD_ADD; | |
580 | break; | |
581 | case BFD_RELOC_TILEPRO_IMM8_X1: | |
582 | reloc = BFD_RELOC_TILEPRO_IMM8_X1_TLS_GD_ADD; | |
583 | break; | |
584 | case BFD_RELOC_TILEPRO_IMM8_Y0: | |
585 | reloc = BFD_RELOC_TILEPRO_IMM8_Y0_TLS_GD_ADD; | |
586 | break; | |
587 | case BFD_RELOC_TILEPRO_IMM8_Y1: | |
588 | reloc = BFD_RELOC_TILEPRO_IMM8_Y1_TLS_GD_ADD; | |
589 | break; | |
590 | default: | |
591 | die = 1; | |
592 | break; | |
593 | } | |
594 | use_subexp = 1; | |
595 | require_symbol = 1; | |
596 | break; | |
597 | ||
598 | case O_tls_ie_load: | |
599 | switch (reloc) | |
600 | { | |
601 | case BFD_RELOC_TILEPRO_IMM8_X1: | |
602 | reloc = BFD_RELOC_TILEPRO_TLS_IE_LOAD; | |
603 | break; | |
604 | default: | |
605 | die = 1; | |
606 | break; | |
607 | } | |
608 | use_subexp = 1; | |
609 | require_symbol = 1; | |
610 | break; | |
611 | ||
aa137e4d NC |
612 | default: |
613 | /* Do nothing. */ | |
614 | break; | |
615 | } | |
616 | ||
617 | if (die) | |
618 | { | |
619 | as_bad (_("Invalid operator for operand.")); | |
620 | } | |
621 | else if (use_subexp) | |
622 | { | |
8d1015a8 | 623 | expressionS *sval = NULL; |
aa137e4d NC |
624 | /* Now that we've changed the reloc, change ha16(x) into x, |
625 | etc. */ | |
626 | ||
8d1015a8 AM |
627 | if (symbol_symbolS (operand_exp->X_add_symbol)) |
628 | sval = symbol_get_value_expression (operand_exp->X_add_symbol); | |
629 | if (sval && sval->X_md) | |
aa137e4d | 630 | { |
aa137e4d NC |
631 | /* HACK: We used X_md to mark this symbol as a fake wrapper |
632 | around a real expression. To unwrap it, we just grab its | |
633 | value here. */ | |
8d1015a8 | 634 | operand_exp = sval; |
e8b9f508 WL |
635 | |
636 | if (require_symbol) | |
637 | { | |
638 | /* Look at the expression, and reject it if it's not a | |
639 | plain symbol. */ | |
640 | if (operand_exp->X_op != O_symbol | |
641 | || operand_exp->X_add_number != 0) | |
642 | as_bad (_("Operator may only be applied to symbols.")); | |
643 | } | |
aa137e4d NC |
644 | } |
645 | else | |
646 | { | |
647 | /* The value of this expression is an actual symbol, so | |
648 | turn that into an expression. */ | |
649 | memset (&subexp, 0, sizeof subexp); | |
650 | subexp.X_op = O_symbol; | |
651 | subexp.X_add_symbol = operand_exp->X_add_symbol; | |
652 | operand_exp = &subexp; | |
653 | } | |
654 | } | |
655 | ||
656 | /* Create a fixup to handle this later. */ | |
657 | fixP = fix_new_exp (frag_now, | |
658 | bundle_start - frag_now->fr_literal, | |
659 | (operand->num_bits + 7) >> 3, | |
660 | operand_exp, | |
661 | is_pc_relative, | |
662 | reloc); | |
663 | fixP->tc_fix_data = operand; | |
664 | ||
665 | /* Don't do overflow checking if we are applying a function like | |
666 | ha16. */ | |
667 | fixP->fx_no_overflow |= use_subexp; | |
668 | } | |
669 | } | |
670 | return bits; | |
671 | } | |
672 | ||
673 | ||
674 | /* Detects and complains if two instructions in current_bundle write | |
675 | to the same register, either implicitly or explicitly, or if a | |
676 | read-only register is written. */ | |
677 | static void | |
678 | check_illegal_reg_writes (void) | |
679 | { | |
680 | BFD_HOST_U_64_BIT all_regs_written = 0; | |
681 | int j; | |
682 | ||
683 | for (j = 0; j < current_bundle_index; j++) | |
684 | { | |
685 | const struct tilepro_instruction *instr = ¤t_bundle[j]; | |
686 | int k; | |
687 | BFD_HOST_U_64_BIT regs = | |
688 | ((BFD_HOST_U_64_BIT)1) << instr->opcode->implicitly_written_register; | |
689 | BFD_HOST_U_64_BIT conflict; | |
690 | ||
691 | for (k = 0; k < instr->opcode->num_operands; k++) | |
692 | { | |
693 | const struct tilepro_operand *operand = | |
694 | &tilepro_operands[instr->opcode->operands[instr->pipe][k]]; | |
695 | ||
696 | if (operand->is_dest_reg) | |
697 | { | |
698 | int regno = instr->operand_values[k].X_add_number; | |
699 | BFD_HOST_U_64_BIT mask = ((BFD_HOST_U_64_BIT)1) << regno; | |
700 | ||
701 | if ((mask & ( (((BFD_HOST_U_64_BIT)1) << TREG_IDN1) | |
702 | | (((BFD_HOST_U_64_BIT)1) << TREG_UDN1) | |
703 | | (((BFD_HOST_U_64_BIT)1) << TREG_UDN2) | |
704 | | (((BFD_HOST_U_64_BIT)1) << TREG_UDN3))) != 0 | |
705 | && !allow_suspicious_bundles) | |
706 | { | |
707 | as_bad (_("Writes to register '%s' are not allowed."), | |
708 | tilepro_register_names[regno]); | |
709 | } | |
710 | ||
711 | regs |= mask; | |
712 | } | |
713 | } | |
714 | ||
715 | /* Writing to the zero register doesn't count. */ | |
716 | regs &= ~(((BFD_HOST_U_64_BIT)1) << TREG_ZERO); | |
717 | ||
718 | conflict = all_regs_written & regs; | |
719 | if (conflict != 0 && !allow_suspicious_bundles) | |
720 | { | |
721 | /* Find which register caused the conflict. */ | |
722 | const char *conflicting_reg_name = "???"; | |
723 | int i; | |
724 | ||
725 | for (i = 0; i < TILEPRO_NUM_REGISTERS; i++) | |
726 | { | |
727 | if (((conflict >> i) & 1) != 0) | |
728 | { | |
729 | conflicting_reg_name = tilepro_register_names[i]; | |
730 | break; | |
731 | } | |
732 | } | |
733 | ||
734 | as_bad (_("Two instructions in the same bundle both write " | |
735 | "to register %s, which is not allowed."), | |
736 | conflicting_reg_name); | |
737 | } | |
738 | ||
739 | all_regs_written |= regs; | |
740 | } | |
741 | } | |
742 | ||
743 | ||
744 | static void | |
745 | tilepro_flush_bundle (void) | |
746 | { | |
747 | unsigned i; | |
748 | int j, addr_mod; | |
749 | unsigned compatible_pipes; | |
750 | const struct bundle_template *match; | |
751 | char *f; | |
752 | ||
753 | inside_bundle = 0; | |
754 | ||
755 | switch (current_bundle_index) | |
756 | { | |
757 | case 0: | |
758 | /* No instructions. */ | |
759 | return; | |
760 | case 1: | |
761 | if (current_bundle[0].opcode->can_bundle) | |
762 | { | |
763 | /* Simplify later logic by adding an explicit fnop. */ | |
764 | prepend_nop_to_bundle (TILEPRO_OPC_FNOP); | |
765 | } | |
766 | else | |
767 | { | |
768 | /* This instruction cannot be bundled with anything else. | |
769 | Prepend an explicit 'nop', rather than an 'fnop', because | |
770 | fnops can be replaced by later binary-processing tools | |
771 | while nops cannot. */ | |
772 | prepend_nop_to_bundle (TILEPRO_OPC_NOP); | |
773 | } | |
774 | break; | |
775 | default: | |
776 | if (!allow_suspicious_bundles) | |
777 | { | |
778 | /* Make sure all instructions can be bundled with other | |
779 | instructions. */ | |
780 | const struct tilepro_opcode *cannot_bundle = NULL; | |
781 | bfd_boolean seen_non_nop = FALSE; | |
782 | ||
783 | for (j = 0; j < current_bundle_index; j++) | |
784 | { | |
785 | const struct tilepro_opcode *op = current_bundle[j].opcode; | |
786 | ||
787 | if (!op->can_bundle && cannot_bundle == NULL) | |
788 | cannot_bundle = op; | |
789 | else if (op->mnemonic != TILEPRO_OPC_NOP | |
790 | && op->mnemonic != TILEPRO_OPC_INFO | |
791 | && op->mnemonic != TILEPRO_OPC_INFOL) | |
792 | seen_non_nop = TRUE; | |
793 | } | |
794 | ||
795 | if (cannot_bundle != NULL && seen_non_nop) | |
796 | { | |
797 | current_bundle_index = 0; | |
798 | as_bad (_("'%s' may not be bundled with other instructions."), | |
799 | cannot_bundle->name); | |
800 | return; | |
801 | } | |
802 | } | |
803 | break; | |
804 | } | |
805 | ||
806 | compatible_pipes = | |
807 | BUNDLE_TEMPLATE_MASK(current_bundle[0].opcode->pipes, | |
808 | current_bundle[1].opcode->pipes, | |
809 | (current_bundle_index == 3 | |
810 | ? current_bundle[2].opcode->pipes | |
811 | : (1 << NO_PIPELINE))); | |
812 | ||
813 | /* Find a template that works, if any. */ | |
814 | match = NULL; | |
815 | for (i = 0; i < sizeof bundle_templates / sizeof bundle_templates[0]; i++) | |
816 | { | |
817 | const struct bundle_template *b = &bundle_templates[i]; | |
818 | if ((b->pipe_mask & compatible_pipes) == b->pipe_mask) | |
819 | { | |
820 | match = b; | |
821 | break; | |
822 | } | |
823 | } | |
824 | ||
825 | if (match == NULL) | |
826 | { | |
827 | current_bundle_index = 0; | |
828 | as_bad (_("Invalid combination of instructions for bundle.")); | |
829 | return; | |
830 | } | |
831 | ||
832 | /* If the section seems to have no alignment set yet, go ahead and | |
833 | make it large enough to hold code. */ | |
fd361982 AM |
834 | if (bfd_section_alignment (now_seg) == 0) |
835 | bfd_set_section_alignment (now_seg, | |
aa137e4d NC |
836 | TILEPRO_LOG2_BUNDLE_ALIGNMENT_IN_BYTES); |
837 | ||
838 | for (j = 0; j < current_bundle_index; j++) | |
839 | current_bundle[j].pipe = match->pipe[j]; | |
840 | ||
841 | if (current_bundle_index == 2 && !tilepro_is_x_pipeline(match->pipe[0])) | |
842 | { | |
843 | /* We are in Y mode with only two instructions, so add an FNOP. */ | |
844 | prepend_nop_to_bundle (TILEPRO_OPC_FNOP); | |
845 | ||
846 | /* Figure out what pipe the fnop must be in via arithmetic. | |
847 | * p0 + p1 + p2 must sum to the sum of TILEPRO_PIPELINE_Y[012]. */ | |
848 | current_bundle[0].pipe = | |
849 | (tilepro_pipeline)((TILEPRO_PIPELINE_Y0 | |
850 | + TILEPRO_PIPELINE_Y1 | |
851 | + TILEPRO_PIPELINE_Y2) - | |
852 | (current_bundle[1].pipe + current_bundle[2].pipe)); | |
853 | } | |
854 | ||
855 | check_illegal_reg_writes (); | |
856 | ||
857 | f = frag_more (TILEPRO_BUNDLE_SIZE_IN_BYTES); | |
858 | ||
859 | /* Check to see if this bundle is at an offset that is a multiple of 8-bytes | |
860 | from the start of the frag. */ | |
861 | addr_mod = frag_now_fix () & (TILEPRO_BUNDLE_ALIGNMENT_IN_BYTES - 1); | |
862 | if (frag_now->has_code && frag_now->insn_addr != addr_mod) | |
863 | as_bad (_("instruction address is not a multiple of 8")); | |
864 | frag_now->insn_addr = addr_mod; | |
865 | frag_now->has_code = 1; | |
866 | ||
867 | tilepro_bundle_bits bits = 0; | |
868 | for (j = 0; j < current_bundle_index; j++) | |
869 | { | |
870 | struct tilepro_instruction *instr = ¤t_bundle[j]; | |
871 | tilepro_pipeline pipeline = instr->pipe; | |
872 | const struct tilepro_opcode *opcode = instr->opcode; | |
873 | ||
874 | bits |= emit_tilepro_instruction (opcode->fixed_bit_values[pipeline], | |
875 | opcode->num_operands, | |
876 | &opcode->operands[pipeline][0], | |
877 | instr->operand_values, | |
878 | f); | |
879 | } | |
880 | ||
881 | number_to_chars_littleendian (f, (unsigned int)bits, 4); | |
882 | number_to_chars_littleendian (f + 4, (unsigned int)(bits >> 32), 4); | |
883 | current_bundle_index = 0; | |
884 | ||
885 | /* Emit DWARF2 debugging information. */ | |
886 | dwarf2_emit_insn (TILEPRO_BUNDLE_SIZE_IN_BYTES); | |
887 | } | |
888 | ||
889 | ||
890 | /* Extend the expression parser to handle hi16(label), etc. | |
891 | as well as SPR names when in the context of parsing an SPR. */ | |
892 | int | |
893 | tilepro_parse_name (char *name, expressionS *e, char *nextcharP) | |
894 | { | |
895 | operatorT op = O_illegal; | |
896 | ||
897 | if (parsing_spr) | |
898 | { | |
629310ab | 899 | void *val = str_hash_find (spr_hash, name); |
aa137e4d NC |
900 | if (val == NULL) |
901 | return 0; | |
902 | ||
903 | memset (e, 0, sizeof *e); | |
904 | e->X_op = O_constant; | |
905 | e->X_add_number = ((const struct tilepro_spr *)val)->number; | |
906 | return 1; | |
907 | } | |
908 | ||
909 | if (*nextcharP != '(') | |
910 | { | |
911 | /* hi16, etc. not followed by a paren is just a label with that | |
912 | name. */ | |
913 | return 0; | |
914 | } | |
915 | else | |
916 | { | |
917 | /* Look up the operator in our table. */ | |
629310ab | 918 | void *val = str_hash_find (special_operator_hash, name); |
aa137e4d NC |
919 | if (val == 0) |
920 | return 0; | |
921 | op = (operatorT)(long)val; | |
922 | } | |
923 | ||
924 | /* Restore old '(' and skip it. */ | |
925 | *input_line_pointer = '('; | |
926 | ++input_line_pointer; | |
927 | ||
928 | expression (e); | |
929 | ||
930 | if (*input_line_pointer != ')') | |
931 | { | |
932 | as_bad (_("Missing ')'")); | |
933 | *nextcharP = *input_line_pointer; | |
934 | return 0; | |
935 | } | |
936 | /* Skip ')'. */ | |
937 | ++input_line_pointer; | |
938 | ||
939 | if (e->X_op == O_register || e->X_op == O_absent) | |
940 | { | |
941 | as_bad (_("Invalid expression.")); | |
942 | e->X_op = O_constant; | |
943 | e->X_add_number = 0; | |
944 | } | |
945 | else | |
946 | { | |
947 | /* Wrap subexpression with a unary operator. */ | |
948 | symbolS *sym = make_expr_symbol (e); | |
949 | ||
950 | if (sym != e->X_add_symbol) | |
951 | { | |
952 | /* HACK: mark this symbol as a temporary wrapper around a proper | |
953 | expression, so we can unwrap it later once we have communicated | |
954 | the relocation type. */ | |
8d1015a8 | 955 | symbol_get_value_expression (sym)->X_md = 1; |
aa137e4d NC |
956 | } |
957 | ||
958 | memset (e, 0, sizeof *e); | |
959 | e->X_op = op; | |
960 | e->X_add_symbol = sym; | |
961 | e->X_add_number = 0; | |
962 | } | |
963 | ||
964 | *nextcharP = *input_line_pointer; | |
965 | return 1; | |
966 | } | |
967 | ||
968 | ||
969 | /* Parses an expression which must be a register name. */ | |
970 | ||
971 | static void | |
972 | parse_reg_expression (expressionS* expression) | |
973 | { | |
974 | /* Zero everything to make sure we don't miss any flags. */ | |
975 | memset (expression, 0, sizeof *expression); | |
976 | ||
2d011dc1 | 977 | char *regname; |
d02603dc | 978 | char terminating_char = get_symbol_name (®name); |
aa137e4d | 979 | |
629310ab | 980 | void* pval = str_hash_find (main_reg_hash, regname); |
aa137e4d NC |
981 | |
982 | if (pval == NULL) | |
983 | as_bad (_("Expected register, got '%s'."), regname); | |
984 | ||
985 | int regno_and_flags = (int)(size_t)pval; | |
986 | int regno = EXTRACT_REGNO(regno_and_flags); | |
987 | ||
988 | if ((regno_and_flags & NONCANONICAL_REG_NAME_FLAG) | |
989 | && require_canonical_reg_names) | |
990 | as_warn (_("Found use of non-canonical register name %s; " | |
991 | "use %s instead."), | |
992 | regname, tilepro_register_names[regno]); | |
993 | ||
994 | /* Restore the old character following the register name. */ | |
d02603dc | 995 | (void) restore_line_pointer (terminating_char); |
aa137e4d NC |
996 | |
997 | /* Fill in the expression fields to indicate it's a register. */ | |
998 | expression->X_op = O_register; | |
999 | expression->X_add_number = regno; | |
1000 | } | |
1001 | ||
1002 | ||
1003 | /* Parses and type-checks comma-separated operands in input_line_pointer. */ | |
1004 | static void | |
1005 | parse_operands (const char *opcode_name, | |
1006 | const unsigned char *operands, | |
1007 | int num_operands, | |
1008 | expressionS *operand_values) | |
1009 | { | |
1010 | int i; | |
1011 | ||
1012 | memset (operand_values, 0, num_operands * sizeof operand_values[0]); | |
1013 | ||
1014 | SKIP_WHITESPACE (); | |
1015 | for (i = 0; i < num_operands; i++) | |
1016 | { | |
1017 | tilepro_operand_type type = tilepro_operands[operands[i]].type; | |
1018 | ||
1019 | SKIP_WHITESPACE (); | |
1020 | ||
1021 | if (type == TILEPRO_OP_TYPE_REGISTER) | |
1022 | { | |
1023 | parse_reg_expression (&operand_values[i]); | |
1024 | } | |
1025 | else if (*input_line_pointer == '}') | |
1026 | { | |
1027 | operand_values[i].X_op = O_absent; | |
1028 | } | |
1029 | else if (type == TILEPRO_OP_TYPE_SPR) | |
1030 | { | |
1031 | /* Modify the expression parser to add SPRs to the namespace. */ | |
1032 | parsing_spr = 1; | |
1033 | expression (&operand_values[i]); | |
1034 | parsing_spr = 0; | |
1035 | } | |
1036 | else | |
1037 | { | |
1038 | expression (&operand_values[i]); | |
1039 | } | |
1040 | ||
1041 | SKIP_WHITESPACE (); | |
1042 | ||
1043 | if (i + 1 < num_operands) | |
1044 | { | |
1045 | int separator = (unsigned char)*input_line_pointer++; | |
1046 | ||
1047 | if (is_end_of_line[separator] || (separator == '}')) | |
1048 | { | |
1049 | as_bad (_("Too few operands to '%s'."), opcode_name); | |
1050 | return; | |
1051 | } | |
1052 | else if (separator != ',') | |
1053 | { | |
1054 | as_bad (_("Unexpected character '%c' after operand %d to %s."), | |
1055 | (char)separator, i + 1, opcode_name); | |
1056 | return; | |
1057 | } | |
1058 | } | |
1059 | ||
1060 | /* Arbitrarily use the first valid pipe to get the operand type, | |
1061 | since they are all the same. */ | |
1062 | switch (tilepro_operands[operands[i]].type) | |
1063 | { | |
1064 | case TILEPRO_OP_TYPE_REGISTER: | |
1065 | /* Handled in parse_reg_expression already. */ | |
1066 | break; | |
1067 | case TILEPRO_OP_TYPE_SPR: | |
1068 | /* Fall through */ | |
1069 | case TILEPRO_OP_TYPE_IMMEDIATE: | |
1070 | /* Fall through */ | |
1071 | case TILEPRO_OP_TYPE_ADDRESS: | |
1072 | if ( operand_values[i].X_op == O_register | |
1073 | || operand_values[i].X_op == O_illegal | |
1074 | || operand_values[i].X_op == O_absent) | |
1075 | as_bad (_("Expected immediate expression")); | |
1076 | break; | |
1077 | default: | |
1078 | abort (); | |
1079 | } | |
1080 | } | |
1081 | ||
1082 | if (!is_end_of_line[(unsigned char)*input_line_pointer]) | |
1083 | { | |
1084 | switch (*input_line_pointer) | |
1085 | { | |
1086 | case '}': | |
1087 | if (!inside_bundle) | |
1088 | as_bad (_("Found '}' when not bundling.")); | |
1089 | ++input_line_pointer; | |
1090 | inside_bundle = 0; | |
1091 | demand_empty_rest_of_line (); | |
1092 | break; | |
1093 | ||
1094 | case ',': | |
1095 | as_bad (_("Too many operands")); | |
1096 | break; | |
1097 | ||
1098 | default: | |
1099 | /* Use default error for unrecognized garbage. */ | |
1100 | demand_empty_rest_of_line (); | |
1101 | break; | |
1102 | } | |
1103 | } | |
1104 | } | |
1105 | ||
1106 | ||
1107 | /* This is the guts of the machine-dependent assembler. STR points to a | |
1108 | machine dependent instruction. This function is supposed to emit | |
1109 | the frags/bytes it assembles to. */ | |
1110 | void | |
1111 | md_assemble (char *str) | |
1112 | { | |
1113 | char old_char; | |
1114 | size_t opname_len; | |
1115 | char *old_input_line_pointer; | |
1116 | const struct tilepro_opcode *op; | |
1117 | int first_pipe; | |
1118 | ||
1119 | /* Split off the opcode and look it up. */ | |
1120 | opname_len = strcspn (str, " {}"); | |
1121 | old_char = str[opname_len]; | |
1122 | str[opname_len] = '\0'; | |
1123 | ||
fe0e921f | 1124 | op = str_hash_find (op_hash, str); |
aa137e4d NC |
1125 | str[opname_len] = old_char; |
1126 | if (op == NULL) | |
1127 | { | |
1128 | as_bad (_("Unknown opcode `%.*s'."), (int)opname_len, str); | |
1129 | return; | |
1130 | } | |
1131 | ||
1132 | /* Prepare to parse the operands. */ | |
1133 | old_input_line_pointer = input_line_pointer; | |
1134 | input_line_pointer = str + opname_len; | |
1135 | SKIP_WHITESPACE (); | |
1136 | ||
1137 | if (current_bundle_index == TILEPRO_MAX_INSTRUCTIONS_PER_BUNDLE) | |
1138 | { | |
1139 | as_bad (_("Too many instructions for bundle.")); | |
1140 | tilepro_flush_bundle (); | |
1141 | } | |
1142 | ||
1143 | /* Make sure we have room for the upcoming bundle before we | |
1144 | create any fixups. Otherwise if we have to switch to a new | |
1145 | frag the fixup dot_value fields will be wrong. */ | |
1146 | frag_grow (TILEPRO_BUNDLE_SIZE_IN_BYTES); | |
1147 | ||
1148 | /* Find a valid pipe for this opcode. */ | |
1149 | for (first_pipe = 0; (op->pipes & (1 << first_pipe)) == 0; first_pipe++) | |
1150 | ; | |
1151 | ||
1152 | /* Call the function that assembles this instruction. */ | |
1153 | current_bundle[current_bundle_index].opcode = op; | |
1154 | parse_operands (op->name, | |
1155 | &op->operands[first_pipe][0], | |
1156 | op->num_operands, | |
1157 | current_bundle[current_bundle_index].operand_values); | |
1158 | ++current_bundle_index; | |
1159 | ||
1160 | /* Restore the saved value of input_line_pointer. */ | |
1161 | input_line_pointer = old_input_line_pointer; | |
1162 | ||
1163 | /* If we weren't inside curly braces, go ahead and emit | |
1164 | this lone instruction as a bundle right now. */ | |
1165 | if (!inside_bundle) | |
1166 | tilepro_flush_bundle (); | |
1167 | } | |
1168 | ||
1169 | static void | |
1170 | s_require_canonical_reg_names (int require) | |
1171 | { | |
1172 | demand_empty_rest_of_line (); | |
1173 | require_canonical_reg_names = require; | |
1174 | } | |
1175 | ||
1176 | static void | |
1177 | s_allow_suspicious_bundles (int allow) | |
1178 | { | |
1179 | demand_empty_rest_of_line (); | |
1180 | allow_suspicious_bundles = allow; | |
1181 | } | |
1182 | ||
1183 | const pseudo_typeS md_pseudo_table[] = | |
1184 | { | |
1185 | {"align", s_align_bytes, 0}, /* Defaulting is invalid (0). */ | |
1186 | {"word", cons, 4}, | |
1187 | {"require_canonical_reg_names", s_require_canonical_reg_names, 1 }, | |
1188 | {"no_require_canonical_reg_names", s_require_canonical_reg_names, 0 }, | |
1189 | {"allow_suspicious_bundles", s_allow_suspicious_bundles, 1 }, | |
1190 | {"no_allow_suspicious_bundles", s_allow_suspicious_bundles, 0 }, | |
1191 | { NULL, 0, 0 } | |
1192 | }; | |
1193 | ||
aa137e4d NC |
1194 | /* Turn the string pointed to by litP into a floating point constant |
1195 | of type TYPE, and emit the appropriate bytes. The number of | |
1196 | LITTLENUMS emitted is stored in *SIZEP. An error message is | |
1197 | returned, or NULL on OK. */ | |
1198 | ||
6d4af3c2 | 1199 | const char * |
aa137e4d NC |
1200 | md_atof (int type, char *litP, int *sizeP) |
1201 | { | |
1202 | int prec; | |
1203 | LITTLENUM_TYPE words[MAX_LITTLENUMS]; | |
1204 | LITTLENUM_TYPE *wordP; | |
1205 | char *t; | |
1206 | ||
1207 | switch (type) | |
1208 | { | |
1209 | case 'f': | |
1210 | case 'F': | |
1211 | prec = 2; | |
1212 | break; | |
1213 | ||
1214 | case 'd': | |
1215 | case 'D': | |
1216 | prec = 4; | |
1217 | break; | |
1218 | ||
1219 | default: | |
1220 | *sizeP = 0; | |
1221 | return _("Bad call to md_atof ()"); | |
1222 | } | |
1223 | t = atof_ieee (input_line_pointer, type, words); | |
1224 | if (t) | |
1225 | input_line_pointer = t; | |
1226 | ||
1227 | *sizeP = prec * sizeof (LITTLENUM_TYPE); | |
1228 | /* This loops outputs the LITTLENUMs in REVERSE order; in accord with | |
1229 | the bigendian 386. */ | |
1230 | for (wordP = words + prec - 1; prec--;) | |
1231 | { | |
1232 | md_number_to_chars (litP, (valueT) (*wordP--), sizeof (LITTLENUM_TYPE)); | |
1233 | litP += sizeof (LITTLENUM_TYPE); | |
1234 | } | |
1235 | return 0; | |
1236 | } | |
1237 | ||
1238 | ||
1239 | /* We have no need to default values of symbols. */ | |
1240 | ||
1241 | symbolS * | |
1242 | md_undefined_symbol (char *name ATTRIBUTE_UNUSED) | |
1243 | { | |
1244 | return NULL; | |
1245 | } | |
1246 | ||
1247 | ||
1248 | void | |
1249 | tilepro_cons_fix_new (fragS *frag, | |
1250 | int where, | |
1251 | int nbytes, | |
1252 | expressionS *exp) | |
1253 | { | |
1254 | expressionS subexp; | |
1255 | bfd_reloc_code_real_type reloc = BFD_RELOC_NONE; | |
1256 | int no_overflow = 0; | |
1257 | fixS *fixP; | |
1258 | ||
1259 | /* See if it's one of our special functions. */ | |
1260 | switch (exp->X_op) | |
1261 | { | |
1262 | case O_lo16: | |
1263 | reloc = BFD_RELOC_LO16; | |
1264 | no_overflow = 1; | |
1265 | break; | |
1266 | case O_hi16: | |
1267 | reloc = BFD_RELOC_HI16; | |
1268 | no_overflow = 1; | |
1269 | break; | |
1270 | case O_ha16: | |
1271 | reloc = BFD_RELOC_HI16_S; | |
1272 | no_overflow = 1; | |
1273 | break; | |
1274 | ||
1275 | default: | |
1276 | /* Do nothing. */ | |
1277 | break; | |
1278 | } | |
1279 | ||
1280 | if (reloc != BFD_RELOC_NONE) | |
1281 | { | |
1282 | if (nbytes != 2) | |
1283 | { | |
1284 | as_bad (_("This operator only produces two byte values.")); | |
1285 | nbytes = 2; | |
1286 | } | |
1287 | ||
1288 | memset (&subexp, 0, sizeof subexp); | |
1289 | subexp.X_op = O_symbol; | |
1290 | subexp.X_add_symbol = exp->X_add_symbol; | |
1291 | exp = &subexp; | |
1292 | } | |
1293 | else | |
1294 | { | |
1295 | switch (nbytes) | |
1296 | { | |
1297 | case 1: | |
1298 | reloc = BFD_RELOC_8; | |
1299 | break; | |
1300 | case 2: | |
1301 | reloc = BFD_RELOC_16; | |
1302 | break; | |
1303 | case 4: | |
1304 | reloc = BFD_RELOC_32; | |
1305 | break; | |
1306 | case 8: | |
1307 | reloc = BFD_RELOC_64; | |
1308 | break; | |
1309 | default: | |
1310 | as_bad (_("unsupported BFD relocation size %d"), nbytes); | |
1311 | reloc = BFD_RELOC_32; | |
1312 | break; | |
1313 | } | |
1314 | } | |
1315 | ||
1316 | fixP = fix_new_exp (frag, where, nbytes, exp, 0, reloc); | |
1317 | fixP->tc_fix_data = NULL; | |
1318 | fixP->fx_no_overflow |= no_overflow; | |
1319 | } | |
1320 | ||
1321 | ||
1322 | void | |
1323 | md_apply_fix (fixS *fixP, valueT * valP, segT seg ATTRIBUTE_UNUSED) | |
1324 | { | |
1325 | const struct tilepro_operand *operand; | |
1326 | valueT value = *valP; | |
1327 | char *p; | |
1328 | ||
1329 | /* Leave these for the linker. */ | |
1330 | if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT | |
1331 | || fixP->fx_r_type == BFD_RELOC_VTABLE_ENTRY) | |
1332 | return; | |
1333 | ||
1334 | if (fixP->fx_subsy != (symbolS *) NULL) | |
1335 | { | |
1336 | /* We can't actually support subtracting a symbol. */ | |
1337 | as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex")); | |
1338 | } | |
1339 | ||
1340 | /* Correct relocation types for pc-relativeness. */ | |
1341 | switch (fixP->fx_r_type) | |
1342 | { | |
1343 | #define FIX_PCREL(rtype) \ | |
1344 | case rtype: \ | |
1345 | if (fixP->fx_pcrel) \ | |
1346 | fixP->fx_r_type = rtype##_PCREL; \ | |
1347 | break; \ | |
1348 | \ | |
1349 | case rtype##_PCREL: \ | |
1350 | if (!fixP->fx_pcrel) \ | |
1351 | fixP->fx_r_type = rtype; \ | |
1352 | break | |
1353 | ||
1354 | FIX_PCREL (BFD_RELOC_8); | |
1355 | FIX_PCREL (BFD_RELOC_16); | |
1356 | FIX_PCREL (BFD_RELOC_32); | |
1357 | FIX_PCREL (BFD_RELOC_TILEPRO_IMM16_X0); | |
1358 | FIX_PCREL (BFD_RELOC_TILEPRO_IMM16_X1); | |
1359 | FIX_PCREL (BFD_RELOC_TILEPRO_IMM16_X0_LO); | |
1360 | FIX_PCREL (BFD_RELOC_TILEPRO_IMM16_X1_LO); | |
1361 | FIX_PCREL (BFD_RELOC_TILEPRO_IMM16_X0_HI); | |
1362 | FIX_PCREL (BFD_RELOC_TILEPRO_IMM16_X1_HI); | |
1363 | FIX_PCREL (BFD_RELOC_TILEPRO_IMM16_X0_HA); | |
1364 | FIX_PCREL (BFD_RELOC_TILEPRO_IMM16_X1_HA); | |
1365 | ||
1366 | #undef FIX_PCREL | |
1367 | ||
1368 | default: | |
1369 | /* Do nothing */ | |
1370 | break; | |
1371 | } | |
1372 | ||
1373 | if (fixP->fx_addsy != NULL) | |
1374 | { | |
1375 | #ifdef OBJ_ELF | |
1376 | switch (fixP->fx_r_type) | |
1377 | { | |
6f7be959 WL |
1378 | case BFD_RELOC_TILEPRO_IMM8_X0_TLS_GD_ADD: |
1379 | case BFD_RELOC_TILEPRO_IMM8_X1_TLS_GD_ADD: | |
1380 | case BFD_RELOC_TILEPRO_IMM8_Y0_TLS_GD_ADD: | |
1381 | case BFD_RELOC_TILEPRO_IMM8_Y1_TLS_GD_ADD: | |
aa137e4d NC |
1382 | case BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD: |
1383 | case BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD: | |
aa137e4d NC |
1384 | case BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_LO: |
1385 | case BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_LO: | |
aa137e4d NC |
1386 | case BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HI: |
1387 | case BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HI: | |
aa137e4d NC |
1388 | case BFD_RELOC_TILEPRO_IMM16_X0_TLS_GD_HA: |
1389 | case BFD_RELOC_TILEPRO_IMM16_X1_TLS_GD_HA: | |
6f7be959 WL |
1390 | case BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE: |
1391 | case BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE: | |
1392 | case BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_LO: | |
1393 | case BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_LO: | |
1394 | case BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HI: | |
1395 | case BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HI: | |
aa137e4d NC |
1396 | case BFD_RELOC_TILEPRO_IMM16_X0_TLS_IE_HA: |
1397 | case BFD_RELOC_TILEPRO_IMM16_X1_TLS_IE_HA: | |
6f7be959 WL |
1398 | case BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE: |
1399 | case BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE: | |
1400 | case BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_LO: | |
1401 | case BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_LO: | |
1402 | case BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HI: | |
1403 | case BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HI: | |
1404 | case BFD_RELOC_TILEPRO_IMM16_X0_TLS_LE_HA: | |
1405 | case BFD_RELOC_TILEPRO_IMM16_X1_TLS_LE_HA: | |
1406 | case BFD_RELOC_TILEPRO_TLS_GD_CALL: | |
1407 | case BFD_RELOC_TILEPRO_TLS_IE_LOAD: | |
aa137e4d NC |
1408 | case BFD_RELOC_TILEPRO_TLS_DTPMOD32: |
1409 | case BFD_RELOC_TILEPRO_TLS_DTPOFF32: | |
1410 | case BFD_RELOC_TILEPRO_TLS_TPOFF32: | |
1411 | S_SET_THREAD_LOCAL (fixP->fx_addsy); | |
1412 | break; | |
1413 | ||
1414 | default: | |
1415 | /* Do nothing */ | |
1416 | break; | |
1417 | } | |
1418 | #endif | |
1419 | return; | |
1420 | } | |
1421 | ||
1422 | /* Apply lo16, hi16, ha16, etc. munging. */ | |
1423 | switch (fixP->fx_r_type) | |
1424 | { | |
aa137e4d NC |
1425 | case BFD_RELOC_LO16: |
1426 | case BFD_RELOC_TILEPRO_IMM16_X0_LO: | |
1427 | case BFD_RELOC_TILEPRO_IMM16_X1_LO: | |
1428 | case BFD_RELOC_TILEPRO_IMM16_X0_LO_PCREL: | |
1429 | case BFD_RELOC_TILEPRO_IMM16_X1_LO_PCREL: | |
1430 | *valP = value = apply_special_operator (O_lo16, value); | |
1431 | break; | |
1432 | ||
aa137e4d NC |
1433 | case BFD_RELOC_HI16: |
1434 | case BFD_RELOC_TILEPRO_IMM16_X0_HI: | |
1435 | case BFD_RELOC_TILEPRO_IMM16_X1_HI: | |
1436 | case BFD_RELOC_TILEPRO_IMM16_X0_HI_PCREL: | |
1437 | case BFD_RELOC_TILEPRO_IMM16_X1_HI_PCREL: | |
1438 | *valP = value = apply_special_operator (O_hi16, value); | |
1439 | break; | |
1440 | ||
aa137e4d NC |
1441 | case BFD_RELOC_HI16_S: |
1442 | case BFD_RELOC_TILEPRO_IMM16_X0_HA: | |
1443 | case BFD_RELOC_TILEPRO_IMM16_X1_HA: | |
1444 | case BFD_RELOC_TILEPRO_IMM16_X0_HA_PCREL: | |
1445 | case BFD_RELOC_TILEPRO_IMM16_X1_HA_PCREL: | |
1446 | *valP = value = apply_special_operator (O_ha16, value); | |
1447 | break; | |
1448 | ||
aa137e4d NC |
1449 | default: |
1450 | /* Do nothing */ | |
1451 | break; | |
1452 | } | |
1453 | ||
1454 | p = fixP->fx_frag->fr_literal + fixP->fx_where; | |
1455 | ||
1456 | operand = fixP->tc_fix_data; | |
1457 | if (operand != NULL) | |
1458 | { | |
1459 | /* It's an instruction operand. */ | |
1460 | tilepro_bundle_bits bits = | |
1461 | insert_operand (0, operand, value, fixP->fx_file, fixP->fx_line); | |
1462 | ||
1463 | /* Note that we might either be writing out bits for a bundle or a | |
1464 | static network instruction, which are different sizes, so it's | |
1465 | important to stop touching memory once we run out of bits. ORing in | |
1466 | values is OK since we know the existing bits for this operand are | |
1467 | zero. */ | |
1468 | for (; bits != 0; bits >>= 8) | |
1469 | *p++ |= (char)bits; | |
1470 | } | |
1471 | else | |
1472 | { | |
1473 | /* Some other kind of relocation. */ | |
1474 | switch (fixP->fx_r_type) | |
1475 | { | |
1476 | case BFD_RELOC_8: | |
1477 | case BFD_RELOC_8_PCREL: | |
1478 | md_number_to_chars (p, value, 1); | |
1479 | break; | |
1480 | ||
1481 | case BFD_RELOC_16: | |
1482 | case BFD_RELOC_16_PCREL: | |
1483 | md_number_to_chars (p, value, 2); | |
1484 | break; | |
1485 | ||
1486 | case BFD_RELOC_32: | |
1487 | case BFD_RELOC_32_PCREL: | |
1488 | md_number_to_chars (p, value, 4); | |
1489 | break; | |
1490 | ||
1491 | default: | |
1492 | /* Leave it for the linker. */ | |
1493 | return; | |
1494 | } | |
1495 | } | |
1496 | ||
1497 | fixP->fx_done = 1; | |
1498 | } | |
1499 | ||
1500 | ||
1501 | /* Generate the BFD reloc to be stuck in the object file from the | |
1502 | fixup used internally in the assembler. */ | |
1503 | ||
1504 | arelent * | |
1505 | tc_gen_reloc (asection *sec ATTRIBUTE_UNUSED, fixS *fixp) | |
1506 | { | |
1507 | arelent *reloc; | |
1508 | ||
add39d23 TS |
1509 | reloc = XNEW (arelent); |
1510 | reloc->sym_ptr_ptr = XNEW (asymbol *); | |
aa137e4d NC |
1511 | *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy); |
1512 | reloc->address = fixp->fx_frag->fr_address + fixp->fx_where; | |
1513 | ||
1514 | /* Make sure none of our internal relocations make it this far. | |
1515 | They'd better have been fully resolved by this point. */ | |
1516 | gas_assert ((int) fixp->fx_r_type > 0); | |
1517 | ||
1518 | reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type); | |
1519 | if (reloc->howto == NULL) | |
1520 | { | |
1521 | as_bad_where (fixp->fx_file, fixp->fx_line, | |
1522 | _("cannot represent `%s' relocation in object file"), | |
1523 | bfd_get_reloc_code_name (fixp->fx_r_type)); | |
1524 | return NULL; | |
1525 | } | |
1526 | ||
1527 | if (!fixp->fx_pcrel != !reloc->howto->pc_relative) | |
1528 | { | |
1529 | as_fatal (_("internal error? cannot generate `%s' relocation (%d, %d)"), | |
1530 | bfd_get_reloc_code_name (fixp->fx_r_type), | |
1531 | fixp->fx_pcrel, reloc->howto->pc_relative); | |
1532 | } | |
1533 | gas_assert (!fixp->fx_pcrel == !reloc->howto->pc_relative); | |
1534 | ||
1535 | reloc->addend = fixp->fx_offset; | |
1536 | ||
1537 | return reloc; | |
1538 | } | |
1539 | ||
1540 | ||
1541 | /* The location from which a PC relative jump should be calculated, | |
1542 | given a PC relative reloc. */ | |
1543 | ||
1544 | long | |
1545 | md_pcrel_from (fixS *fixP) | |
1546 | { | |
1547 | return fixP->fx_frag->fr_address + fixP->fx_where; | |
1548 | } | |
1549 | ||
1550 | ||
1551 | /* Return 1 if it's OK to adjust a reloc by replacing the symbol with | |
1552 | a section symbol plus some offset. */ | |
1553 | int | |
1554 | tilepro_fix_adjustable (fixS *fix) | |
1555 | { | |
1556 | /* Prevent all adjustments to global symbols */ | |
1557 | if (S_IS_EXTERNAL (fix->fx_addsy) || S_IS_WEAK (fix->fx_addsy)) | |
1558 | return 0; | |
1559 | ||
1560 | return 1; | |
1561 | } | |
1562 | ||
1563 | ||
1564 | int | |
1565 | tilepro_unrecognized_line (int ch) | |
1566 | { | |
1567 | switch (ch) | |
1568 | { | |
1569 | case '{': | |
1570 | if (inside_bundle) | |
1571 | { | |
1572 | as_bad (_("Found '{' when already bundling.")); | |
1573 | } | |
1574 | else | |
1575 | { | |
1576 | inside_bundle = 1; | |
1577 | current_bundle_index = 0; | |
1578 | } | |
1579 | return 1; | |
1580 | ||
1581 | case '}': | |
1582 | if (!inside_bundle) | |
1583 | { | |
1584 | as_bad (_("Found '}' when not bundling.")); | |
1585 | } | |
1586 | else | |
1587 | { | |
1588 | tilepro_flush_bundle (); | |
1589 | } | |
1590 | ||
1591 | /* Allow '{' to follow on the same line. We also allow ";;", but that | |
1592 | happens automatically because ';' is an end of line marker. */ | |
1593 | SKIP_WHITESPACE (); | |
1594 | if (input_line_pointer[0] == '{') | |
1595 | { | |
1596 | input_line_pointer++; | |
1597 | return tilepro_unrecognized_line ('{'); | |
1598 | } | |
1599 | ||
1600 | demand_empty_rest_of_line (); | |
1601 | return 1; | |
1602 | ||
1603 | default: | |
1604 | break; | |
1605 | } | |
1606 | ||
1607 | /* Not a valid line. */ | |
1608 | return 0; | |
1609 | } | |
1610 | ||
1611 | ||
1612 | /* This is called from HANDLE_ALIGN in write.c. Fill in the contents | |
1613 | of an rs_align_code fragment. */ | |
1614 | ||
1615 | void | |
1616 | tilepro_handle_align (fragS *fragp) | |
1617 | { | |
1618 | int bytes, fix; | |
1619 | char *p; | |
1620 | ||
1621 | if (fragp->fr_type != rs_align_code) | |
1622 | return; | |
1623 | ||
1624 | bytes = fragp->fr_next->fr_address - fragp->fr_address - fragp->fr_fix; | |
1625 | p = fragp->fr_literal + fragp->fr_fix; | |
1626 | fix = 0; | |
1627 | ||
1628 | /* Determine the bits for NOP. */ | |
1629 | const struct tilepro_opcode *nop_opcode = | |
1630 | &tilepro_opcodes[TILEPRO_OPC_NOP]; | |
1631 | tilepro_bundle_bits nop = | |
1632 | ( nop_opcode->fixed_bit_values[TILEPRO_PIPELINE_X0] | |
1633 | | nop_opcode->fixed_bit_values[TILEPRO_PIPELINE_X1]); | |
1634 | ||
1635 | if ((bytes & (TILEPRO_BUNDLE_SIZE_IN_BYTES - 1)) != 0) | |
1636 | { | |
1637 | fix = bytes & (TILEPRO_BUNDLE_SIZE_IN_BYTES - 1); | |
1638 | memset (p, 0, fix); | |
1639 | p += fix; | |
1640 | bytes -= fix; | |
1641 | } | |
1642 | ||
1643 | number_to_chars_littleendian (p, (unsigned int)nop, 4); | |
1644 | number_to_chars_littleendian (p + 4, (unsigned int)(nop >> 32), 4); | |
1645 | fragp->fr_fix += fix; | |
1646 | fragp->fr_var = TILEPRO_BUNDLE_SIZE_IN_BYTES; | |
1647 | } | |
1648 | ||
1649 | /* Standard calling conventions leave the CFA at SP on entry. */ | |
1650 | void | |
1651 | tilepro_cfi_frame_initial_instructions (void) | |
1652 | { | |
1653 | cfi_add_CFA_def_cfa_register (54); | |
1654 | } | |
1655 | ||
1656 | int | |
1657 | tc_tilepro_regname_to_dw2regnum (char *regname) | |
1658 | { | |
1659 | int i; | |
1660 | ||
1661 | for (i = 0; i < TILEPRO_NUM_REGISTERS; i++) | |
1662 | { | |
1663 | if (!strcmp (regname, tilepro_register_names[i])) | |
1664 | return i; | |
1665 | } | |
1666 | ||
1667 | return -1; | |
1668 | } |